Side-knife wiper.



E. F. GODDARD.

SIDE KNIFE WIPER.

APPLICATION FILED 1330.13, 1912.

1, 1 O8, 357 Patented Aug. 25, 1914 ilia/612121;:

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THE NORRIS PETERS 60., F'Homd l'ruau wAsnlNn'rcr! n c.

a citizen of the United is UNITED STATES PATENT OFFICE.

EDWARD GODDARD, OF STRATYFORD, COTDJ'NECTIUUT, Jl SSIfi-NOR T ELECCtR-IC COM- IPOSI'JIOR COMPANY, OF NEW YORK, N. Y., A CGRPORATIUN OF NEW JERSEY.

SIDE-IHVIFE 'WIPER.

To all whom it may conccm lie it known that it, .l'low inn ll. (.loonann, tes, residing at tltratii'oird, in the county of Fair-field and State oi. Connecticut, hare invented a. certain no i and usetul .lln'iprevenient in Sidelinijte l l ipers, of which the tt'ollowing is a full, clear, and exact description.

This invention relates to line casting niacbines in which the mold moves baclanvard and forward"between the casting position and the ejecting position. It is well andorstood that when the mold is in the eject ing positimiv the slug which has previously been cast in the meld slot is pushed out oil said slot and between trimming knives which trim of? the surface metal so as to make the slugs of uniform thickness. It is obviously essential that these side trimming knives shall be clean and tree from particles of metal adhering to andljying across their cutting edges it'roni previous trin'nnings. The present invention relates to means whereby these knives are wiped clean of all adhering particles of metal after each slug hasbeen pushed between them and before another slug is pushed between them.

The invention includes a salin actuated.

knife wiper carried by the movable mold, a sliding cam bar also carried by said in old, and mechanism operated by said cam bar to move and hold the wiper in an inoperative position, and abntinents arranged to engage said bar when the mold is near each end. oil" its path of travel, whereby said bar is caused to move endwise relatively to the mold, and thereby in one case to release the wiperto the action oi? its spring, and in the other case to witl'ldraw the wiper to and hold it in the inoperative position.

The invention is sl'mwn in the acconipmiying drawings and is hereinafter described and pointed out definitely in the appended claims.

In the drawing. Figure 1 is an end vie, i of the side trimming knives and mold equipped with my invention, when the mold is in the casting position. Fig. 2 is a front view of said inold,-'the full lines showing the parts in the casting position, and the dotted lines showing the position off some of said parts When the mold in the ejecting position. In both figures mentioned the part C is broken away, Fig. 3 is a plan view of the mold and knives. Figs.

Specification of Letters Patent.

Application filed December 13, 1912.

n LOlCl.

4i and 5 are frag- Patented Aug. 25, 1914. Serial No. 736,468.

mold is in the casting position,---the mold being sectioned on line (3 6 on if 1.

Referring to the parts by reference characters ll"! represents the mold, and K and I? represent the two trimming knives. These knives are fixed in position and have their edges set at a. slight angle to the path of the The mold, after a slug has been cast in its slot, is moved from the casting to the meeting position, and when it is in this posi tion the mold slot is in such position that the slug therein, when pushed forward, will pass between. these trin'nning knives.

In order to wipe the knives, the mold carries a. knife wiper plate A, which is located close to that end oil. that mold which. is ad- .Jacent to the eyectmg mechanism.

It is desirable that this wiper plate shall contact with the knife blades and wipe them while the mold is moving to the ejecting position; and it is also desirable that itshall not contact with said trin'nning knives when the mold moving in contrary direction, or otherwise it might deposit on the knives some of the chips and sh aving's which it had. previously wiped oli. The knife wiper, which is preferably a brass plate, is arranged in a. vertical position with its wiping edge directed forwardly toward the knives. It slides horizontally baclnvard and forward in a gnideway between the left end of the mold, and a plate C fixed to said mold. It under the influence of a spring (6 tending to push it forward into contact with the knives. Associated with it is a retractor B which is in the shape of a little bell crank lever. This has one downwardly extended arm which engages a pin a which projects sidewise from the wiper plate. The othu arm of the latch extends in a substantially horizontal direction and lies in the path of an inclined or cam surface (Z on the lower face of a. bar D which extends entirely through the mold from end to end, and is :Freely movable therein. 7 It which is movable in a horizontal path beprojects at both ends a little beyond the mold. Just as the mold reaches the ejecting position this bar, by engaging the abutment E, will be moved relatively to the right,that is'to say it will be stopped before the mold comes to rest. This will cause the inclined or cam surface (Z on said bar to engage with the horizontal arm of the bell crank and to rock the bell crank in such direction that its downwardly extended arm, by engaging the pin on the wiper plate, will move said wiper plate rearward that it cannot contact with the trimming knives. There is a raised flat surface (Z on this bar, onto which the arm will pass when the bar has been moved relatively to the right in the manner and for the purpose stated. Therefore, the wiper plate will be held back out of contact with the knives, while the mold moves to the right toward the casting position. Just as it reaches the casting position the projecting right end of the bar will strike an abutment F whereby the bar is moved relatively to the left in the mold, and this carries the cam or inclined surface (Z relatively to the left, so as to allow the wiper plate to be moved rearward by its spring into that position wherein when the mold moves to the ejecting position it will contact with and wipe clean the, trimming l'nives referred to.

Having described my invention, I claim:

1. In a line casting machine, the combination of side trimming knives, and a mold hind said knives between the slug casting and the slug ejecting positions, with a knife wiper movably mounted on the mold adj acent to that end thereof which is directed toward the ejecting position, a spring acting on said wiper to move it forward into operative position, a bar which is movably l Copies of this patent may be obtained for five cents each, by addressing the mounted on said mold and extends and is movable lengthwise thereof and projects beyond both ends thereof,said bar having a cam surface, means engageable and movable by said cam surface for moving said wiper in opposition to its spring into an inoperative position, and two abutments located near opposite ends mold and in positions to be engaged by the projecting ends of said bar before the mold completes its movement in either direction.

In a. line casting machine, the combination of side trimming knives, and a mold which is movable in a horizontal path behind said knives between the slug casting and the slug ejecting positions, with a knife wiper movably mounted on the moldadjacent to that end thereof which is directed toward the ejecting position, a spring acting on said wiper to move it forward into operative position, a bar which is movably mounted on said mold and extends and is movable lengthwise thereof and projects beyond both ends thereof, said bar having a cam surface, a bell crank lever pivoted to said mold and having its horizontal arm extended to a position to be engaged the cam surface on said bar, a laterally projecting shoulder on the wiper with which the nearly vertical arm of said bell crank engages, and two, abutments located near opposite ends of the path of the mold and in positions to be engaged by the projecting ends of said bar before the mold completes its movement in either direction.

In testimony whereof, I hereunto affix my signature in the presence of two witnesses.

DAVID Perm-Pammno, F. STIL MAN.

Commissioner of Patents,

Washington, I). C.

of the path of the 

